Technical parameters rated voltage of drum: AC 10kV; rated current of drum: 250A; cable diameter: 82mm; winding capacity of drum: 250m; motor power: 5.5kW; output torque of hydraulic coupler: 500NM; phase number of collector ring: 30002 (3 fire rings, 1 ground ring, one signal ring) to realize cable driving mechanization and automation, to meet the requirements of automatic take-off and release of tail cable reel. Equipped with cable arranger, the cable can be put in and out in an orderly manner. The electrical components are selected from the standard industrial control system, and the parts are easy to replace. Working temperature requirements:-50 ℃-+ 45 ℃. The connector is reliable and durable, and the reel outlet hole is equipped with cable waterproof joint, which meets the waterproof requirement.